Air-conditioning apparatus.



A. A. BLOMFELDT. AIR CONDITIONING APPARATUS.

APPLICATION- PILBD rms. 2o, 1913.

1,113,950.` Patented 0c1.20,191.1a

THE NORRIS PETERS C0.. PHOTULITHO.. WASHINGTUN. D. C.

`humidifying the air asit is "ALLEN A. BLQMEELDT, or' cHrcAGo, `1LL11vois.

AIR-CONDITIONING Arrann'rus.

Specification o! LetterskPatent. l Patentd Oct. 20, 1914.

Appneationmearebruary`2o,yieiep seraiNp. 719,657.4` a

To all 'whom t may concern:

Be 1t known that l, ALLEN A. BLoMrnLnnf .a citizen of the United States of America,

anda resident of Chicago, county of Cook, and State of Ill1no1s, have invented certain new and useful Improvements 1n A1r-Con-.

ditioning Apparatus, of which the follow-` ing is a specification.

rllhe main obgect of this invention is to,y

provide an improved form of air condition-v lng apparatus, having improved means for.' caused to pass through the apparatus.`

.An illustrative embodiment of this inven-i tion is shown in the accompanying draw-l` ings inzwhichi Figure 1 is a transverse section taken on the line A-A of Fig. 2. Fig. 2 is a longi-.r tudinal sectional elevation ofthe apparatus; somewhat enlarged. y l

In the construction shown in the draw ings, a casing 1, preferably of rectangularj cross section, is provided withanyinlet open-.f` ing (not shown) and an outlet opening 3,; through which air isxcausedto Spassv byi means of the blower (not shown): -ithin vthe casing is arranged spraying mechanism 6, humidifying means 7, and an eliminator S. rlhe air in passing through the Vapparatus is first washed free of impurities by the spraying mechanism 6, which may be of any suitable construction.` After being washed, the air is saturated with 4thefproper amount of moisture by the humidifying means 7, and then has the excess of moisture carried in suspension removed therefrom by means of the vertical baiiie walls 9 and the upwardly inclined baflie walls 10 and 11 of the eliminator 8. 'The casing is mounted on a tank 12, arranged below the spraying mechanism, and is adapted to supply water therefor.

The humidifying chamber and means `7 are located in the upper part of the casing 1 between the spraying mechanism and the' vertical baiiie plates 9. The passage of air through thechamber is controlled by means of the vertical dampers 13. The dampers 18 are mounted to swing on trunnions 1-1 and are connected to a rod 15 by meansof which they are simultaneously operated. A plurality of heating coils or radiators 16 are arranged in the compartment. The coils are preferably of substantially oblong cross section and are suitably connected to y a source of steam supply herein shown as headers 17 and 18 arranged atthe sides of the casing 1. `The coils are connected to said headers by means lof pipes 19a-nd are `connected bypipes 2O to a returnheader (notshown). The several horizontal series vof coils are staggered in-vertical relation and are inclined in `respectively opposite directions so *that water falls in a transverse sheet from onesto another of the coils, and onto the partition 21 from whence it falls 1n a sheet intothe tank 12. There is ad- A plurality of `water distributers 22 are onto said coils. Below the partition 21 are arranged a series of vertical plates 24 disr posed at an angle, which cause the waterin leaving the vpartition 21 to travel down the surfaces thereof,thus aiding in humidifying the air thatpassesdirectly into the eliminators. L

,The operationof the `ldeviceshown is as follows: lThe inlet of the apparatus is suitably connected to the atmosphere from .whence air is drawn through the apparatus l by means of the blower. `The air is first caused to pass through the water issuing4 )from the spraying mechanism Gby which it is washed free of dust and gases." A part of thefair current iscausedto pass through `the humidifying chamber 7 whereas the other part passes directly intothe elimina- `yantagerin the oblongform of coil in that 1t `provrdes alwideftop `surface over which the water flows for facilitating evaporation connected to a supply.l pipe 23 locatedabove `the uppermost coils `16 which discharge'water tor 8. In passingthrough the humidifying chamber the air comes in contact and must pass through the sheets of 'heated water` dropping from the steam coils 16 and falling from one to another. Water is evaporated by the steam coils, and the air is warmed by its contact therewith, so that the I air becomes saturated with moisture. That part of the current of air passing below the `humidifying chamber is to a certain extent l also warmed and humidified by reason of its contact with the water `running down the plates 24.* `As the air passes through the The volume ofair passing through ythe ,humidil `fying chamber 7 is controlled the dam# pers 13, which'may `be shifted so aste' in# crease or decrease the space between them and thereby control the division of the air through said casing, a plurality of heating coils of substantially oblong cross-section located in said casing one above the other acros'sthe path of the air, and a Water supply located above the uppermost of said coils and adapted toy discharge a sheet of= Water onto saiduppermost coil, said coils being arranged so that the Water will fall in a sheet from one of said coils adjacent to one of its edges and strike the next coil belotv adj acentto o'ne of its edges and thenfall in a sheet from said next coil adjacent to' the opposite edge thereof. l

y2. Air conditioning apparatus, comprising a casing, means adapted to cause air to liow through said casing, a plurality of heating coils'of substantially oblong cross-section arranged in said casing one above the'other With their long dimensions transverse to the flow of air, said coilsy beingy oiiset With respect to each other and having their upper i faces inclined, and a Water supply located above the uppermost of said coils and adapted to discharge a sheet of Water onto said uppermost coil adjacent to one of its edges, said Water traveling along the inclined surface of said coil and being discharged in a sheet therefrom and falling onto the next coil, traveling along the upper surface of said next coil and falling in a sheet from the edge thereof.

3. Air conditioning apparatus, comprising a casing, means adapted to cause air to flow through said casing, a plurality of heating coils of substantially oblong crosssection arranged in said casing one above the other in staggered relation with their long dimensions transverse to the ioW of air with alternate coils having their upper faces inclined in respectively opposite directions,

and a Water supply located above the upperv most oi: said coils and adapted to discharge a sheet of Water onto said uppermost coil adjacent to one of its edges, said water traveling along the inclined surface of said coil and being discharged in a sheet therefrom and falling onto the next coil, traveling along the upper surface of said next coil and falling in a sheet from the edge thereof.

Signed at Chicago this 17th day of February 1913.

ALLEN A. BLOMFELDT. Witnesses:

EUGENE A. RUMMLER, JnnNrE Bun'r.

opies of this patent may be obtained for five cents each, by addressing the "Commissioner of Yatents,

Washington, D. C. 

